package com.app.bimo.commonbusiness.util;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.PixelFormat;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.widget.ImageView;

public class RoundImageView extends ImageView {

        private Paint paint;
        public RoundImageView(Context context) {
            this(context,null);
        }

        public RoundImageView(Context context, AttributeSet attrs) {
            this(context, attrs,0);
        }

        public RoundImageView(Context context, AttributeSet attrs, int defStyle) {
            super(context, attrs, defStyle);
            paint = new Paint();
        }

        /**
         * 绘制圆角矩形图片
         */
        @Override
        protected void onDraw(Canvas canvas) {
            Drawable drawable = getDrawable();
            Bitmap bitmap = null;
            if (null != drawable && drawable instanceof BitmapDrawable) {
                BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable;
                bitmap = bitmapDrawable.getBitmap();
                //Bitmap bitmap =( (BitmapDrawable)drawable).getBitmap();
                Bitmap b = getRoundBitmap(bitmap, 10);
                final Rect rectSrc = new Rect(0, 0, b.getWidth(), b.getHeight());
                final Rect rectDest = new Rect(0,0,getWidth(),getHeight());
                paint.reset();
                canvas.drawBitmap(b, rectSrc, rectDest, paint);

            }//防止出现类型转换异常
            else if(this.getDrawable() instanceof Drawable){
                bitmap = Bitmap
                        .createBitmap(
                                getWidth(),
                                getHeight(),
                                drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888
                                        : Bitmap.Config.RGB_565);
                Canvas canvas1 = new Canvas(bitmap);
                // canvas.setBitmap(bitmap);
                drawable.setBounds(0, 0, getWidth(),
                        getHeight());
                drawable.draw(canvas1);
            }
            else {
                super.onDraw(canvas);
            }
        }

        /**
         * 获取圆角矩形图片方法
         * @param bitmap
         * @param roundPx,一般设置成14
         * @return Bitmap
         * @author caizhiming
         */
        private Bitmap getRoundBitmap(Bitmap bitmap, int roundPx) {
            Bitmap output = Bitmap.createBitmap(bitmap.getWidth(),
                    bitmap.getHeight(), Bitmap.Config.ARGB_8888);
            Canvas canvas = new Canvas(output);

            final int color = 0xff424242;

            final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
            final RectF rectF = new RectF(rect);
            paint.setAntiAlias(true);
            canvas.drawARGB(0, 0, 0, 0);
            paint.setColor(color);
            int x = bitmap.getWidth();

            canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
            paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
            canvas.drawBitmap(bitmap, rect, rect, paint);
            return output;


        }
    }




